Toyota Tacoma 2015-2018 Service Manual: TC and CG Terminal Circuit

Toyota Tacoma 2015-2018 Service Manual / Brake Control / Dynamic Control Systems / Vehicle Stability Control System(for Vacuum Brake Booster) / TC and CG Terminal Circuit

DESCRIPTION

Connecting terminals TC and CG of the DLC3 causes the ECU to display the DTC by blinking the ABS warning light and slip indicator light.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When replacing the skid control ECU (brake actuator assembly), perform zero point calibration and store system information (See page PROCEDURE ).

PROCEDURE

1.	CHECK CAN COMMUNICATION SYSTEM

(a) Check if CAN communication system DTCs are output (See page Result Result ).

Result

Result	Proceed to
DTC is not output	A
DTC is output	B

CHECK CAN COMMUNICATION SYSTEM

2.	INSPECT DLC3

(a) Turn the ignition switch to ON.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
D4-13 (TC) - D4-4 (CG)	Ignition switch ON	11 to 14 V

Text in Illustration

*a	Front view of DLC3

GO TO STEP 4

3.	REPLACE ECM

(a) Turn the ignition switch off.

(b) Replace the ECM.

for 2GR-FKS: (See page )
for 2TR-FE: (See page )

SST: 09843-18040

(d) Check that the ABS warning and slip indicator lights are blinking.

OK:

The ABS warning and slip indicator lights are blinking.

Text in Illustration

*a	Front view of DLC3

END

REPLACE BRAKE ACTUATOR ASSEMBLY

4.	CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM)

(a) Turn the ignition switch off.

(b) Disconnect the E13*1, E21*2 ECM connector.

*1: for 2GR-FKS
*2: for 2TR-FE

Standard Resistance:

for 2GR-FKS:

Tester Connection	Condition	Specified Condition
D4-13 (TC) - E14-20 (TC)	Always	Below 1 Ω
D4-13 (TC) or E14-20 (TC) - Body ground	Always	10 kΩ or higher

for 2TR-FE:

Tester Connection	Condition	Specified Condition
D4-13 (TC) - E21-19 (TC)	Always	Below 1 Ω
D4-13 (TC) or E21-19 (TC) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.	CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
D4-4 (CG) - Body ground	Always	Below 1 Ω

Text in Illustration

*a	Front view of DLC3

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.	REPLACE ECM

(a) Replace the ECM.

for 2GR-FKS: (See page )
for 2TR-FE: (See page )

(b) Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

SST: 09843-18040

OK:

The ABS warning and slip indicator lights are blinking.

Text in Illustration

*a	Front view of DLC3

END

REPLACE BRAKE ACTUATOR ASSEMBLY

Slip Indicator Light does not Come ON

DESCRIPTION Refer to Slip Indicator Light Remains ON (See page ). WIRING DIAGRAM Refer to Slip Indicator Light Remains ON (See page ). CAUTION / NOTICE / HINT NOTICE: When replacing the skid ...

VSC Buzzer Circuit

DESCRIPTION The skid control ECU (brake actuator assembly) is connected to the combination meter via CAN communication. The combination meter has a built-in VSC warning buzzer: Sounds inte ...

Other materials:

Side Airbag Sensor RH Circuit Malfunction (B1620/21)
DESCRIPTION The side airbag sensor assembly RH consists of parts such as the safing sensor, the diagnostic circuit and the lateral deceleration sensor. When the airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether or not the SRS should be activate ...

Lost Communication with ECM (C1437)
DESCRIPTION The skid control ECU (brake actuator assembly) receives signals from the ECM via the CAN communication system. DTC No. Detection Item DTC Detection Condition Trouble Area C1437 Lost Communication with ECM ...

Precaution
PRECAUTION 1. Check that the battery cables are connected to the correct terminals. 2. Disconnect the battery cables when the battery is given a quick charge. 3. Do not perform tests with a high voltage insulation resistance tester. 4. Never disconnect the battery while the engine is running. 5 ...